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WorksheetsData Handling in Grade 7
Total questions: 10
Worksheet time: 7mins
What is the mean of the following data set: 10, 15, 20, 25, 30?
27
20
22
18
Define the term 'mode' in statistics.
The mode is the middle value in a data set.
The mode is the average of a data set.
The mode is the highest value in a data set.
The mode in statistics refers to the value that appears most frequently in a data set.
If a student scored 85, 90, 92, 88, and 95 on five tests, what is their median score?
90
88
85
92
Calculate the range of the data set: 5, 10, 15, 20, 25, 30.
25
10
35
18
What is the formula to calculate the mean of a data set?
Mean = (Sum of all values) + (Total number of values)
Mean = (Sum of all values) * (Total number of values)
Mean = (Sum of all values) - (Total number of values)
Mean = (Sum of all values) / (Total number of values)
If the mode of a data set is 12, how many times does 12 appear in the data set?
The number 12 appears in the data set as many times as it takes to be the mode.
12 is not present in the data set.
12 appears in the data set once.
The number 12 appears in the data set 10 times.
Calculate the mean of the data set: 12, 15, 18, 21, 24, 27.
17.83
23.75
20.25
16.5
If the median of a data set is 20, how many data points are above and below 20?
Same number of data points above and below 20
More data points above than below 20
Less data points above than below 20
No data points above or below 20
The difference between the highest and the lowest value of the observations in a data is called:
Sum of observation
Total frequency
Mean
Range
Median
